Hearing this, you sit on your haunches after shedding the last of your clothes. You are now a German Shepard in body, if not in mind. Your animal insincts and urges are powerful, but you still retain a will. It is, however, a tenuous balance.
As she approaches your now kean sense of smell detects a pecular odor. It is unlike the other smells that have bombarded you since you aquirred a canine nose. A second later your instincts tell you what it is...it is the scent of fear, and coming from the zoo lady.
Still sitting, you look more closely at the beautiful woman approaching you. The only evidence of her transformation are the two ears poking out through her still luxurious red hair. Continuing downward, her full, but firm breasts are heaving. She is tryig to remain calm, but someting is clearly upsetting her, or she is nervous. You also note the nipples protruding through her bra and wonder if that is also part of the transformation or her natural endowment.
Then you notice the small patches of downy fur growing on the back of her hands. More importantly, they are shaking.
Your instincts know the truth, but your mind is not completely up to par. Unconciously, your ears pull back. Then you add 2 + 2 and realize that she is not coming to give you an antidote.
With a snarl, you leap at her. You are momentarily surprised at your new-found agility and strength as your front paws make contact with the soft flesh of her breasts.
She is knocked backwards, but does not fall. Twisting her body to run away, you see a nice tail has found its way out of the confines of her jeans.
Realizing she may get away, you leap at her behind and snag a piece of her womanly butt. Her jeans are pulled down to her knees as they were already loosened to allow her tail to have room. You leap again and are in a doggy style position, with you as a dog and the woman in her panties and bra, still almost entirely human.
This throws her off balance and she falls. Still grasping her behind with your forelegs, you catch a glimpse of her as she throws out her hands to break the fall and see that the needle has pricked her wrist.
She screams. Whether from the pain of falling or the needle you do not know. You soon will realize, however, that it is a scream of horror.
You notice fur visibly growing on her back and sense her changes are quickening. You look up to the cabinet where she prepared your "antidote". Just below it you see two labeled beakers. Still able to read, you squint to make out the writing as you still firmly hold the woman's lovely butt to your groin. The label on the nearest beaker says, "Transformation Accelerant". The other label says, "Sex Drive Booster". You were right.
The womans behavior is starting to change. Looking her over from your perch, her white, soft womanly skin is now mostly covered with fur. She still has her almost perfect figure and her stunnig red hair has not changed as far as you could tell. Her bra has fallen off during the struggle and her jeans are somewhere across the room.
Her squirming has diminished. You wonder if she is going to attempt another escape or if something else is happening...